Metal protector for hose-couplings.



G. s. woon. l METAL PROTECTOR FOB HOSE GOUPLINGS.

APPLICATION'*FILED NOV. 3, 1909.

984,876. i Patented 11611.21, 1911.

Jx/f X162..

y of Chicago, in the county 'of Cook and State -of Illinois, have invented certain new and in metal protectors for air brake couplings i To all 'whom it may concern: i,

a section through Fig. 2 on the line 3-3 method of attachment is objectionable :for the GUILF-ORD S. W

oon, o

PAE l L F CHICAGO,- ILLINOIS.

METAL PROTECTOR .TOR HOSE-COUPLINGS.

Be it know-nthat I, GUILFORD S. Woon, a citizen ofthe United States,'and a resident useful Improvements in Metal Protectors for Hose-Couplings; and I do -hereby declare that the following is a full, clear, and exact description 4thereof,reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to an improvement and particularly to the means for securing said metal protectors in position. The invention consists of the combination In the drawings -Figure 1 shows a porwith a. hose coupling having my improvement attached. `Fig. 2.is a side elevation on an enlarged scale'of the hose coupling provided with my improvement. Fig. 3 vis thereof. Fig. 4 is a partial longitudinal sec` tion through the inner end of the hose coupling. Fig. 5 is a section similar to Fig. 3 showing a slightly modified arrangement. Fig. 6 is another section showing' another modied form of the improvement. v YA indicates the flexible hose coupling and B, the nipple which is inserted into the hose at one end as indicated at B1 and provided at its other end with a screw-threaded projection B2 by meansof which it is attached to the train pipe C in the usual manner. D is the metal protector for the hose, and E, the clamping ring by means of which the hose is clamped on the nipple. Said clamping ring is provided with ears F which are drawn togetherby means ofl a. bolt E1 and nut E2. VThese parts are all substantially as described in Letters Patent Number 880,060, granted me on February 25th, 1908.

The metal sheath D, whichis in the form of a coil of spring wire, terminates at its inner end in a short piece of straight wire d, by means of which4 the sheath is permanently connected to the hose. In the patent referred to, said attachment is made by clamping the straight projecting iece of Specification of `Letters Patent. Application inea Novembers, 1909. serial No.

wire under the clampm ring This Patented Feu. 2,1, 1911.

Areasonthat the action of the clamping 'ring tends to embed the straight section of wire into the hose to such an extent'A as to cut or weaken it at this point so that it soon wears through. The object of this invention is to overcome this objection.

In the construction shown in`Figs. 2 and 3, the outer periphery of the clamping ringE is provided with a oove @which is adapted to receive the straight piece of wire d. If

of the groove may be swaged over the wire .al so as toretain it in position, but `usually the natural spring of the wire itselfwill maintain it in said groove, In the construction shown in Fig. 5 the clamping ring Eis provided with a hole 'e2 through which the straight wire d is inserted. In the construction shown in'Fig.6, the inner surfaceof the clamping ring is 'provided' .with a half round groove ea which is `adapted to receive the end of the Wired, *the wire in this case lying half in the groove and the other half being embedded in the rubber hose immedi-A ately beneath the clamping ring.'

It is apparentthatin all of the constructions above described the projectin wire d will offer no resistance when the ring E is being'clamped on the hose, nor will there bev any tendency to so embedthe wire into the hose as to cut or unnecessarily4 wear or Weakenit.

I claim 'as my inventiom- In an air hose coupling, in combination with a hose, a nipple engaged by said hose, a clamping ring a apted to clamp said hose on said nipple, a metal protector forsaid hose in the form of a coil of spring metal surrounding said hose in the neighborhood` of the nipple, an anchoring member project- 65 desired, the points e1 e1 which form the sides ing longltudinally of said hose from the innel' end-of said metal protector, and a notch or opening in said ring adapted to recelve said anchoring member to retain it in fixed relation to vsald clamping ring so as to be movable therewith when the ends of the ring are drawn together.

In testimony, that I, claim the foregoing as my invention I aiiix vmy signature 1n the presence of two witnesses, this 30th day of October A. D. 1909." Y

. GUILFORD S. WOOD. Witnesses: l v

GEORGE It. WILKINS, T. H. Ams. 

